AM-2010-10014-A · Pyritearchived
physical & structuralrev. 3
| designation | Pyrite |
|---|---|
| chemical formula | FeS₂ |
| classification | Sulfide / Pyrite group |
| crystal system | Cubic |
| mohs hardness | 6 – 6.5 |
| density (g/cm³) | 5.03 |
| colour | Pale brass-yellow, tarnishing |
| type locality | Bahia, Brazil |
raman spectroscopy532 nm · pass A
reported peaks (cm⁻¹): 342, 378, 429
notessubmitter remarks + registry
Donated as part of a regional mineralogy survey; no individual provenance retained.
chain of custody8 events · 5 seal-breaks
Events recorded against this accession in the registry's printed custody book. Operator initials are anonymous. Storage codes follow the convention vault-shelf-drawer.
| timestamp | stage | detail | op. |
|---|---|---|---|
| 2010-07-20 10:42 UTC | intake | weighed, dimensioned, photographed; container sealed and labelled with the accession identifier | L.K. |
| 2010-07-21 11:05 UTC | pass A | visual inspection · density (Archimedes) · mass to ±0.01 g | P.S. |
| 2010-08-02 16:26 UTC | pass B | Raman acquisition; 3 peaks above prominence threshold instrument: Renishaw inVia (532 nm, low-power head) ref. checked: ICDD card 04-6931 | P.S. |
| 2010-08-03 16:42 UTC | storage | re-bagged, label re-printed; placed in vault D, shelf 26, drawer 31 | L.K. |
| 2012-08-02 09:34 UTC | re-inspection | seal intact · label legible · no visible degradation | C.B. |
| 2014-08-02 15:11 UTC | re-inspection | seal intact · label legible · no visible degradation | C.B. |
| 2016-08-01 10:13 UTC | re-inspection | seal intact · label legible · no visible degradation | C.B. |
| 2018-08-01 08:41 UTC | re-inspection | seal intact · label legible · no visible degradation | C.B. |
physical location: vault D · shelf 26 · drawer 31 · last documented inspection: 2018-08-01 08:41 UTC